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Aquatic respiration. Sea slugs respire through a gill (or ctenidium) Aquatic respiration is the process whereby an aquatic organism exchanges respiratory gases with water, obtaining oxygen from oxygen dissolved in water and excreting carbon dioxide and some other metabolic waste products into the water.
Fish physiology is the scientific study of how the component parts of fish function together in the living fish. [2] It can be contrasted with fish anatomy, which is the study of the form or morphology of fishes. In practice, fish anatomy and physiology complement each other, the former dealing with the structure of a fish, its organs or ...
Metabolic waste - Wikipedia ... Metabolic waste
Osmoregulation - Wikipedia ... Osmoregulation
Fish gill - Wikipedia ... Fish gill
Instead of using fossil fuels, we're told to use "clean" energy: wind, solar, or hydropower. Hydro is the most reliable. Unlike wind and sunlight, it flows steadily. But now, environmental groups ...
Reuse of human excreta is the safe, beneficial use of treated human excreta after applying suitable treatment steps and risk management approaches that are customized for the intended reuse application. Beneficial uses of the treated excreta may focus on using the plant-available nutrients (mainly nitrogen, phosphorus and potassium) that are ...
Manta ray - Wikipedia ... Manta ray